Map from "The OVERLAND ROUTE to
the Road of a Thousand Wonders: The Route of the Union Pacific &
Southern Pacific from Omaha to San Francisco — A Journey of Eighteen
Hundred Miles Where Once the Bison & the Indian Reigned" Union
and Southern Pacific Railroad Passenger Departments, 1908. Courtesy Bruce C. Cooper Collection.

Wheat,
Carl I. Mapping the Trans-Mississippi West 1540-1861. Vol.
IV. From the Pacific Railroad Surveys to the Onset of the Civil
War. San
Francisco, Institute of Historical Cartography, 1960. [Limited to 1000
copies.] This definitive work on the cartographic history of the West was
designed by the
Grabhorn Press
and produced by several San Francisco printers. Map reproductions are
black
and white.